BECKHOFF CX1100-09xx UPS - Manual (Page 30)

Commissioning
28 Embedded PC
Setting retention time
The retention time is set via the torque switch.
Switch / position retention time
0 100 %
9 90 %
8 80 %
7 70 %
6 60 %
5 50 %
4 40 %
3 30 %
2 20 %
1 10 %
The position 0 (=100%) means that the full capacity of UPS can be used. Depending of the connected load the power
supply can be secured for some minutes. The time can be reduced if the connected system shuts down fast. If the
system shuts down fast the restart can be accelerated.
note
The retention time should last longer than system shutdown time.
For secure operation a time reserve is advised (XPe shutdown time plus 20-30 %)
The retention time can also be set in TwinCAT system
manager:
The description can be found in "Settings for UPS module in System Manager".